Furnace.



'JHH. SAMPLE & E. n. POUT.

FURNACE.

APPLICATION FILED FEB.25, 1914.

Patented Feb. 2, 1915.

2 SHBETSSHEET 2.

WITNESSES: T a. c. m OMIQ'HIAY of ya nvrrnn STATES PATENT onFioE.

JOHN H. SAMPLE AND EMMET' D. FOUT, F TOLEDO, OHIO.

Patented Feb. 2, 1915.

in the burner 6 in the manner well known in FURNACE.

1,126,873, Specification of Letters Patent.

'- p Application filed February 25, 1914. Serial No. 820,%5.

To all whom it ma concern:

Be it known that we, J OHN H. SAMPLE and EMMET D. Four, citizens of theUnited States, and residents of Toledo, in the county of Lucas and Stateof Ohio, have invented a certain new and useful Furnace; and we dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to the characters. of reference markedthereon, which form a part of this specification.

Our invention relates to furnaces.

It particularly relates to compact furnaces which so bafile the productsof combustion and permit free circulation of air and products ofcombustion and mix them to perfect the combustion and so bafiie the airwhich isused for heating purposes that the combustible elements will becompletely consumed, the heat produced thereby will be entirely used inheating the air and the heat of the gases leaving the furnace will besubstantially the same as the air which is used for heating purposes.

The invention may be contained in many constructions all of which comewithin the purview of our claims hereinafter appended. To show thepracticability of constructions embodying our invention, we haveselected one of such constructions as an example and shall describe ithereinafter. The construction selected is illustrated in theaccompanying drawings.

Figure 1 of the drawings illustrates a vertical side View of a furnaceembodying our invention. It is shown in the figure partly in section toindicate the manner of construction and assembling parts of the furnace.Fig. 2 is a front View, and Fig. 3 shows a transverse vertical sectionof the furnace.

1 indicates the supporting base.

2 is the heater chamber having the side walls 3, end wall 4. and thefront wall 5 and the top 20. It is provided with a gas burner 6 which issupported in the socket 7 located in the end wall 4 and in an opening 8located in the front wall 5.

The burner 6 may be any suitable type of burner. The heater is providedwith an opening 10 through which gas may be directed into the burner andopenings 11 through which air passesto mix with the gas cated in the topof the furnace.

the art. If desired, a suitable pilot light may also be located adjacentto the burner 6. The burner 6 is also held in position by the front wall12 of the furnace which has a flange 13 extending in front of the mouth14 of the burner which supports the damper 15 for adjusting the size ofthe openings 11 to produce the desired mixture of gas and air enteringthe burner 63. The plate 15 may be locked in position by means of thescrew 16. An opening in the front wall 5 of the heater chamber is alsoprovided which registers with an opening in the front wall 12 of thefurnace, and is closed by the door 17 having the isinglass front 18. Thedoor 17 is pivoted on the screw 19 located in the fur nace front wall12. It is provided with a knob or handle 21 whereby the door may beswung to open and closed positions. The burner may be lighted throughthe opening covered by the door 17 and also the condition of the mixtureand czz-aracter of the blaze may be seen through the isingiass 18.

The furnace is provided. with a of rectangular shaped end flues Mn.locked to the front and rear walls 12 and .25 by means of ears andflanges 27 and by means of the inter-connecting horizontal pipes 28. Thepipes 28 connect the end fines located in one furnace wall with the endflues of the other furnace wall alter nately so as to form a continuedpassageway back and forth from one furnace wall to the other, and to theuppermost pipe 28 lo- The lowermost end flue is connected to the heaterchamber. The pipes 28 are made of sheet metal which brings the elementsof combustion rising from the burner 6 into close-heatable relation withrespect to the air surrounding the pipes 28. A connector 29 may besecured to the rear wall 26 of the furnace for connecting the rear endof the uppermost pipe 28 with any suitable chimney or exit flue.

In order to perfect the combustion of the gases passing from the flameof the burner 6, air may be allowed to pass into the heater chambertube. Openings may be located in the lower corners of the chamber 2.

They may be formed in the side walls 3 and front wall 5 of the chamber.The air passing through the openings, 30 will then mix with the heatedelements passin from the flame and perfect the combustion of the tweenthe side of the oblong pipes 28. The

' furnace walls 12 and 26 are provided with lugs 36 having notches orrecesses 37 which are adapted to receive the inner corners of the battleplates 38. The outer corners of the baffle plates are supported by lugs39 having channels 40 which receive the ends of the baflie plates 38 andsupport the outer corners thereof. The baffle plates are provided withdownwardly extending flanges 41 which press against the side walls 35 ofthe furnace and are thus held in position in the notches 37 and thechannels 40. The parts. are secured or tied together by the bolts 46.

The air passes through the bottom of the furnace and between the sidewalls 3 of the heater. chamber and the side walls 35 of the furnace,over the top of the heater chamber and upward, past the lower baflieplates 38 on each side of the furnace and above and near the top of theheater chamber and near the lower side of the lower horizontal pipes 28and along the sides of the lower oblong pipe 28 and over and near thetop of the lower oblong pipe by the next pair of battle plates 38 and soon by the pipes 28 and the bafl'le plates 38 in succession, the partsbeing so disposed as to allow free movement of the air and yet direct itclose to heating elements of the surface, namely, the walls of theheater chamber and the surfaces of the pipes 28.

The upper ends of the frontand rear furnace walls 12 and 26 are providedwith handles 45, whereby the furnace may be handled and moved as may bedesired.

The furnace. by reason of its compactness,

may be inserted in a register opening and the air heated as desired.Furthermore, the furnace may be inserted in a recess beneath a floor ofthe room and covered by a register,

the air passing down from the room on the outside of the furnace walls12, 26 and 35 and then up through the furnace and baflled by the pipes28 and the plates 38 as described.

The construction selected and described may be greatly varied in thearrangement and construction of its parts and in the substitution of theelements having equivalent functions and such modifications may stillcontain the invention which is described in the claims in the languageof the elements shown.

What we claim as new and desire to secure by Letters Patent is asfollows:

1. In an air heating furnace, the combination of a supporting base, anair heating chamber, said chamber comprising side and end walls, the endwalls being provided with suitable openings, end flues removablysupported within said openings, the ends of said flues projecting intothe casing, and formed with flanges against the outer sides of which theends of the casing bear, pipes fitting the ends of said flues, andbearing against the inner side of said flanges, and tie bolts forholding said end walls, end flues, and pipes in their operativepositions, the end flues and pipes constituting an exit flue for theproducts of combustion from said base.

2. In an air heating furnace, the combination of a supporting base, anair heating chamber, said chamber comprising side and end walls, the endwalls being provided wlth suitable openings, end flues removably supported within said openings, the ends of said flues projecting into thecasing, and formed with flanges against the outer sides of which theends of the casing bear, pipes fitting the ends of said flues, andbearing against the inner side of said flanges, baflle plates locatedintermediate the pipes, and tie bolts for holding said end walls, endflues, pipes and baffle plates in their operative positions, the endflues and pipes constituting an exit flue for the products of combustionfrom said base.

In testimony whereof, we have hereunto signed our names to thisspecification in the presence of two subscribing witnesses.

' JOHN H. SAMPLE.

. EMMET D. FOUT.

Witnesses:

C. W. OWEN, F. E. AUL.

